查询词典 decibel

As for the noise controlment in this design, except adopting low noise equipment technically, we will also build some noise controlling room in the main noisy area which can control the noise decibel under 70 dN, and can avoid harm for our workers.

本设计对噪声的控制除从工艺上采用低噪声设备外，还对车间的主要噪声区设置隔声操作室，将室内噪声控制在70dN以下，工人在室内操作可勉受强噪声的危害。

Obviously, it is much easier to comprehend the decibel levels.

显然，这是很容易理解的分贝水平。

There's a limit to the decibel of noise that one can tolerate.

一个人能忍受的噪音分贝是有限度的。

The most usual system is that of the decibel scale.

最常用的系统为分贝标度系统。

You can follow these links to see a whole list of decibel levels and exposure times.

你可以参照以下的链接去看看所有的分贝等级与你的双耳在分贝中忍受的时间

This requires the existing decibel level requirements to be adjusted to the new 50 cm measurement distance .

由现有的分贝水平要求调整到新的50 cm 测量距离的要求

And it analyses the effect of decibel in the EMC test and electromagnetic design.

分析了分贝在电焊机电磁兼容测试和电磁兼容设计方面作用。

But his 117 decibel yell fell short of the Guinness title.

但是他117分贝的成绩未能打破吉尼斯纪录。

One decibel is the lowest sound that the average person

一分贝是指人耳能听到的最小的声音。

See also Decibel, Photophone, and SONAR.

参见 Decibel、Photophone和SONAR。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。